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import shlex
import shutil
import subprocess
import sys


def build_testlib(tmpdir, orig_testlib):
    tmp_testlib = tmpdir / "testlib"
    shutil.copytree(orig_testlib, tmp_testlib)
    testlib_build = tmp_testlib / "build"
    if testlib_build.exists():
        shutil.rmtree(testlib_build)
    testlib_build.mkdir(parents=True, exist_ok=True)

    cmd = ["cmake", "-DCMAKE_BUILD_TYPE=Release", ".."]
    if sys.platform == 'win32':
        cmd += ["-G", "Ninja"]
    print("Running:", shlex.join(cmd))
    subprocess.check_call(cmd, cwd=str(testlib_build))
    cmd = ["cmake", "--build", ".", "--config", "Release"]
    print("Running:", shlex.join(cmd))
    subprocess.check_call(cmd, cwd=str(testlib_build))

    if sys.platform == 'win32':
        lib_name = "answer.dll"
    elif sys.platform == 'darwin':
        lib_name = "libanswer.dylib"
    else:
        lib_name = 'libanswer.so'
    lib_path = testlib_build / lib_name
    if not lib_path.exists():
        raise FileNotFoundError(f"Failed to locate built library at: {lib_path}")

    return lib_path
